EP4199622A1 - Kommunikationsverfahren und kommunikationsvorrichtung - Google Patents

Kommunikationsverfahren und kommunikationsvorrichtung Download PDF

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Publication number
EP4199622A1
EP4199622A1 EP21916727.7A EP21916727A EP4199622A1 EP 4199622 A1 EP4199622 A1 EP 4199622A1 EP 21916727 A EP21916727 A EP 21916727A EP 4199622 A1 EP4199622 A1 EP 4199622A1
Authority
EP
European Patent Office
Prior art keywords
information
terminal device
sending
receiving
frequency hopping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21916727.7A
Other languages
English (en)
French (fr)
Other versions
EP4199622A4 (de
Inventor
Zheng Yu
Mengting LIU
Jianghua Liu
Xin Gao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4199622A1 publication Critical patent/EP4199622A1/de
Publication of EP4199622A4 publication Critical patent/EP4199622A4/de
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • enhanced mobile broadband enhanced mobile broadband
  • UE user equipment
  • reduced capability reduced capability
  • This type of UE is referred to as low-complexity (or low-capability, or low-cost) UE.
  • the RedCap UE has one or more of the following characteristics: low device complexity and low device size.
  • an embodiment of this application provides a communication method.
  • the communication method includes: A terminal device transmits first capability information to a first network device, where the first capability information indicates that the terminal device supports sending and/or receiving first information by using a maximum of a first quantity of resources, and the first information includes a reference signal; the terminal device transmits second capability information to a second network device, where the second capability information indicates that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources, and the second information includes at least one of the following: data or control information; the terminal device obtains first configuration information, where the first configuration information indicates that a quantity of resources configured for the first information is not greater than the first quantity; and the terminal device obtains second configuration information, where the second configuration information indicates that a quantity of resources configured for the second information is not greater than the second quantity.
  • the first quantity is greater than the second quantity.
  • the fifth capability information indicates:
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the terminal device obtains the sixth capability information.
  • the sixth capability information has a plurality of implementations.
  • the sixth capability information includes at least one of the following: scrambling code information, location information, period information, interval information, frequency hopping information, density information, guard time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the terminal device may indicate, to the first network device by using the sixth capability information, a capability of the terminal device for the scrambling code information, the location information, the period information, the interval information, the frequency hopping information, the density information, the guard time information, the tuning time information, the nonsimultaneous transmit information, and the nonsimultaneous receive information.
  • a plurality of manners of sending and/or receiving the first information may be predefined.
  • the manner may include ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , and ⁇ second mode, no frequency hopping ⁇ .
  • the first configuration information may indicate one of the foregoing manners.
  • the terminal device may obtain, by using the first configuration information, the manner of sending and/or receiving the first information, so that the terminal device sends and/or receives the first information.
  • the third capability information indicates:
  • the first algorithm and the second algorithm are different algorithms.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the interval information is an interval that is between two consecutive times of sending and/or receiving the first information and that can be supported by the terminal device.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the nonsimultaneous transmit information indicates that when sending the first information, the terminal device does not support sending information other than the first information.
  • the information about sending and/or receiving the first information includes at least one of the following: scrambling code information, location information, period information, interval information, frequency hopping information, density information, guard time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the frequency hopping time domain configuration includes at least one of the following: a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame or slot configuration.
  • the first configuration information indicates that a manner of sending and/or receiving the first information is one of the following: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , or ⁇ second mode, no frequency hopping ⁇ .
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the first configuration information indicates that a manner of sending and/or receiving the first information is one of the following: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , ⁇ second mode, no frequency hopping ⁇ , or ⁇ first mode, frequency hopping ⁇ .
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the terminal device sends and/or receives the first information in a predefined sending and/or receiving manner.
  • the processing module is configured to receive, by using the transceiver module, second capability information transmitted by the terminal device, where the second capability information indicates that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources, and the second information includes at least one of the following: data or control information.
  • the processing module is configured to send first configuration information to the terminal device by using the transceiver module, where the first configuration information indicates that a quantity of resources configured for the first information is not greater than the first quantity.
  • an embodiment of this application provides a communication system.
  • the communication system includes a terminal device and a network device.
  • the network device is configured to perform the method according to any implementation of the second aspect.
  • an embodiment of this application provides a communication system.
  • the communication system includes a terminal device, a first network device, and a second network device.
  • an apparatus may be a terminal device, an apparatus in a terminal device, or an apparatus that can be used together with a terminal device.
  • the apparatus may include modules that are in one-to-one correspondence with the method/operations/steps/actions described in the first aspect.
  • the modules may be implemented by using a hardware circuit, software, or a combination of a hardware circuit and software.
  • the apparatus may include a processing module and a transceiver module.
  • an embodiment of this application further provides a computer program product, including instructions.
  • the instructions When the instructions are run on a computer, the computer is enabled to perform the method according to any one of the first aspect to the second aspect.
  • Embodiments of this application provide a communication method and apparatus.
  • a terminal device may report, by using first capability information, that the terminal device supports sending and/or receiving a reference signal by using a maximum of a first quantity of resources, and the terminal device may report, by using second capability information, that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources. This avoids that the terminal device sends and/or receives the second information by using the first quantity of resources, and this reduces complexity of the terminal device and reduces power consumption overheads of the terminal device.
  • "/" may represent an "or” relationship between associated objects.
  • A/B may represent A or B.
  • "And/or” may be used to indicate that there are three relationships between associated objects.
  • a and/or B may represent the following three cases: Only A exists, both A and B exist, and only B exists.
  • a and B may be singular or plural.
  • words such as “first”, “second”, “A”, and “B” may be used to distinguish between technical features with a same or similar function.
  • the terminal device in embodiments of this application may also be referred to as a terminal, and may be a device having a wireless transceiver function.
  • the terminal device may be deployed on land, including an indoor device, an outdoor device, a handheld device, or a vehicle-mounted device; may be deployed on the surface of water (such as in a steamship); or may be deployed in the air (such as on an airplane, a balloon, or a satellite).
  • the terminal device may be user equipment (user equipment, UE).
  • the UE includes a handheld device, a vehicle-mounted device, a wearable device, or a computing device having a wireless communication function.
  • the UE may be a mobile phone (mobile phone), a tablet computer, or a computer having a wireless transceiver function.
  • the chip system may include a chip, or may include a chip and another discrete component.
  • the apparatus configured to implement the function of the terminal device is a terminal device is used to specifically describe the technical solutions provided in embodiments of this application.
  • an apparatus configured to implement a function of the network device may be a network device, or may be an apparatus, for example, a chip system, that can support a network device in implementing the function.
  • the apparatus may be deployed on the network device, or may be used together with the network device.
  • an example in which the apparatus configured to implement the function of the network device is a network device is used to specifically describe the technical solutions provided in embodiments of this application.
  • An embodiment of this application provides a communication method.
  • the method is applicable to a communication scenario between a terminal device and at least one network device, and may provide a proper resource for a positioning service of different types of terminal devices.
  • a resource applicable to a positioning service of a REDCAP terminal device may be provided for the REDCAP terminal device, to meet communication requirements of various types of terminal devices.
  • the REDCAP terminal device and a conventional terminal device support different bandwidths, or the REDCAP terminal device and a conventional terminal device support different aggregation levels (aggregation level, AL), or the REDCAP terminal device and a conventional terminal device support different quantities of candidate control channels.
  • aggregation level aggregation level
  • the terminal device transmits first capability information to a first network device, where the first capability information indicates that the terminal device supports sending and/or receiving first information by using a maximum of a first quantity of resources, and the first information includes a reference signal.
  • the terminal device transmits second capability information to a second network device, where the second capability information indicates that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources, and the second information includes at least one of the following: data or control information.
  • the terminal device obtains first configuration information, where the first configuration information indicates that a quantity of resources configured for the first information is not greater than the first quantity.
  • the terminal device transmits the second capability information to the network device, where the second capability information indicates that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources, and the second information includes at least one of the following: the data or the control information.
  • the terminal device may report, by using the first capability information, that the terminal device supports sending and/or receiving the reference signal by using a maximum of the first quantity of resources, and the terminal device may report, by using the second capability information, that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources. This avoids that the terminal device sends and/or receives the second information by using the first quantity of resources, and this reduces complexity of the terminal device and reduces power consumption overheads of the terminal device.
  • FIG. 1 is a schematic flowchart of interaction between network devices and a terminal device according to an embodiment of this application.
  • step 101 to step 104 are described from a side of the terminal device
  • step 111 and step 113 are described from a side of a first network device
  • step 112 and step 114 are described from a side of a second network device.
  • the interaction procedure shown in FIG. 1 mainly includes the following steps.
  • the terminal device transmits first capability information to the first network device, where the first capability information indicates that the terminal device supports sending and/or receiving first information by using a maximum of a first quantity of resources, and the first information includes a reference signal.
  • the terminal device sends and/or receives information by using a resource.
  • the terminal device requests the network device to allocate a resource.
  • the terminal device reports the capability information of the terminal device.
  • the network device allocates the resource to the terminal device based on the capability information of the terminal device.
  • the quantity in this embodiment of this application may alternatively be understood as a size (size).
  • the first quantity of resources is a first size of resources.
  • the resource is a bandwidth
  • the first quantity of resources is a first size of bandwidth.
  • the first quantity of bandwidth is 100 MHz, 200 MHz, or 300 MHz.
  • the first network device receives the first capability information transmitted by the terminal device, where the first capability information indicates that the terminal device supports sending and/or receiving the first information by using a maximum of the first quantity of resources, and the first information includes the reference signal.
  • the terminal device establishes a communication connection to the first network device.
  • the terminal device sends the first capability information to the first network device.
  • the first network device receives the first capability information transmitted by the terminal device.
  • the first network device parses the first capability information.
  • the first capability information indicates that the terminal device supports sending and/or receiving the first information by using a maximum of the first quantity of resources, so that the first network device can obtain a maximum resource that can be used by the terminal device to send and/or receive the first information.
  • the first information includes the reference signal.
  • the reference signal is an uplink reference signal.
  • the uplink reference signal is a sounding reference signal (sounding reference signal, SRS), or an uplink positioning sounding reference signal (positioning sounding reference signal, pos-SRS).
  • the reference signal is a downlink reference signal.
  • the downlink reference signal is a downlink positioning reference signal (positioning reference signal, PRS), a channel state information reference signal (channel state information-reference signal, CSI-RS), or a synchronization signal and physical broadcast channel block (synchronization signal and PBCH (physical Broadcast Channel) Block, SSB).
  • the positioning sounding reference signal pos-SRS or the sounding reference signal SRS is used by a peer device (communicating with the terminal device) to position the terminal device.
  • the sounding reference signal SRS may further be used by a peer device that performs communication to perform channel measurement.
  • the terminal device transmits second capability information to the second network device, where the second capability information indicates that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources, and the second information includes at least one of the following: data or control information.
  • the terminal device sends and/or receives information by using a resource.
  • the terminal device requests the network device to allocate a resource.
  • the terminal device reports capability information of the terminal device.
  • the network device allocates the resource to the terminal device based on the capability information of the terminal device.
  • the terminal device sends and/or receives the second information by using a resource.
  • the terminal device requests the network device to allocate a resource.
  • the terminal device reports the second capability information of the terminal device to the second network device.
  • the second capability information indicates that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources.
  • the second information includes at least one of the following: the data or the control information.
  • the data may be data carried on a physical shared channel.
  • the control information may be control information carried on a physical control channel.
  • the first information is a positioning sounding reference signal
  • the second information is data.
  • the first information is a positioning sounding reference signal
  • the second information is data or a sounding reference signal.
  • the reference signal is different from the data, and the reference signal is different from the control information.
  • the quantity in this embodiment of this application may be understood as a number or an amount.
  • the first quantity of resources is a first number of resources
  • the second quantity of resources is a second number of resources.
  • the resource is a resource block
  • the first quantity of resources is a first number of resource blocks
  • the second quantity of resources is a second number of resource blocks.
  • the subcarrier spacing is 30 kHz (a frequency range FR1)
  • the second quantity of bandwidth is 51 resource blocks (or 106 resource blocks, or 11 resource blocks).
  • the first quantity of bandwidth is 66 resource blocks (or 132 resource blocks, or 264 resource blocks).
  • the first capability information indicates that the terminal device supports sending the first information by using a maximum of the first quantity of resources.
  • the first capability information indicates the first quantity, and the first quantity of resources is a maximum bandwidth supported by the terminal device for sending the first information.
  • the second capability information indicates that the terminal device supports sending the second information by using a maximum of the second quantity of resources.
  • the second capability information indicates the second quantity, and the second quantity of resources is a maximum bandwidth supported by the terminal device (for sending the second information).
  • the second network device receives the second capability information transmitted by the terminal device, where the second capability information indicates that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources, and the second information includes at least one of the following: the data or the control information.
  • a communication connection is established between the terminal device and the second network device, and the terminal device sends the second capability information to the second network device.
  • the second network device receives the second capability information transmitted by the terminal device, and the second network device parses the second capability information.
  • the second capability information indicates that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources, so that the second network device can obtain a maximum resource that can be used by the terminal device to send and/or receive the second information.
  • step 111 and step 112 are not limited in this application.
  • the first network device may determine the first configuration information based on the first information. Specifically, the first network device performs the foregoing step 111. The first network device obtains the first capability information transmitted by the terminal device, and the first network device parses the first capability information. The first capability information indicates that the terminal device supports sending and/or receiving the first information by using a maximum of the first quantity of resources, so that the first network device can obtain a maximum resource that can be used by the terminal device to send and/or receive the first information. The first network device may configure a resource for the first information. For example, the first network device configures a resource used by the terminal device to send and/or receive the first information. The first network device generates the first configuration information. The first configuration information indicates that a quantity of resources configured for the first information is not greater than the first quantity. The first quantity is obtained by the first network device by parsing the first capability information, or is obtained based on an indication of the first capability information.
  • the first configuration information may be included in one or more of radio resource control (radio resource control, RRC), medium access control (medium access control, MAC) signaling, and downlink control information (downlink control information, DCI), or the first configuration information may be included in signaling sent by a positioning service device to the terminal device.
  • RRC radio resource control
  • MAC medium access control
  • DCI downlink control information
  • the first configuration information may be included in signaling sent by a positioning service device to the terminal device.
  • the positioning service device is the first network device.
  • the second network device may determine the second configuration information based on the second information. Specifically, the second network device performs the foregoing step 112. The second network device obtains the second capability information transmitted by the terminal device. The second network device parses the second capability information. The second capability information indicates that the terminal device supports sending and/or receiving the second information by using a maximum of the second quantity of resources, so that the second network device can obtain a maximum resource that can be used by the terminal device to send and/or receive the second information. The second network device may configure a resource for the second information. For example, the second network device configures a resource used by the terminal device to send and/or receive the second information. The second network device generates the second configuration information. The second configuration information indicates that the quantity of resources configured for the second information is not greater than the second quantity. The second quantity is obtained by the second network device by parsing the second capability information, or is obtained based on an indication of the second capability information.
  • sequence of 103 and 104 is not limited, and a sequence of 113 and 114 is not limited.
  • the terminal device may obtain the second configuration information from the second network device, so that the terminal device may learn that the quantity of resources configured for the second information is not greater than the second quantity.
  • the first quantity belongs to a first quantity set, and at least one quantity in the first quantity set is greater than the second quantity;
  • the first quantity belongs to the first quantity set, the second quantity is predefined, at least one quantity in the first quantity set is greater than the second quantity, and the second quantity is predefined by the terminal device.
  • the terminal device predefines that a bandwidth of the second quantity is 20 MHz, 40 MHz, or 5 MHz, or predefines that a bandwidth of the second quantity is 51 resource blocks (or 106 resource blocks, or 11 resource blocks).
  • the first quantity set may include one component element, or include a plurality of component elements, where the component element is a quantity that constitutes the first quantity set. At least one quantity in the first quantity set is greater than the second quantity. Therefore, the first quantity may be greater than the second quantity.
  • a specific value of the first quantity is not limited herein.
  • the first quantity belongs to the first quantity set
  • the second quantity belongs to the second quantity set
  • at least one quantity in the first quantity set is greater than the second quantity.
  • the first quantity set may include one component element, or include a plurality of component elements, where the component element is a quantity that constitutes the first quantity set.
  • the second quantity set may include one component element, or include a plurality of component elements, where the component element is a quantity that constitutes the second quantity set. At least one quantity in the first quantity set is greater than the second quantity. Therefore, the first quantity may be greater than the second quantity.
  • a specific value of the first quantity is not limited herein.
  • the first quantity is predefined
  • the second quantity is predefined
  • the first quantity is greater than the second quantity
  • the resource is one or more of a bandwidth, a resource block, a carrier, a subband, a frequency range, a frequency segment, a frequency band, a subcarrier spacing, a bandwidth part (bandwidth part, BWP), a frequency hopping interval, and a quantity of frequency hops within a specific time range.
  • a resource defined in this embodiment of this application has a plurality of implementations.
  • the resource may be a bandwidth, or the resource may be a resource block. This is not limited in this embodiment of this application.
  • the third capability information indicates whether the terminal device supports sending and/or receiving the first information in the carrier aggregation manner.
  • the third capability information may be 1-bit indication information, and the indication information indicates whether the terminal device supports sending and/or receiving the first information in the carrier aggregation manner.
  • the third capability information indicates that the terminal device supports sending and/or receiving the first information by using a maximum of the M carriers, where M is a positive integer.
  • a value of M may be carried in the third capability information. That the terminal device sends and/or receives the first information by using a maximum of the M carriers means that a maximum of carriers used by the terminal device can be the M carriers.
  • the terminal device sends the third capability information, so that the first network device or the second network device may determine whether the terminal device uses carrier aggregation and determine a quantity of carriers used for aggregation.
  • the terminal device may send a positioning sounding reference signal on a larger frequency resource through carrier (CC) switching.
  • CC carrier
  • the terminal device does not need to be capable of sending the positioning sounding reference signal in a carrier aggregation manner.
  • FIG. 2a it is assumed that there are three carriers: CC 1 , CC 2 , and CC 3 , where each carrier is 100 MHz, and different carriers overlap.
  • the UE may send the positioning sounding reference signal on a frequency resource of nearly 300 MHz, to maintain low complexity of the terminal device. In other words, the UE does not need to have a capability of sending the positioning sounding reference signal in a carrier aggregation manner, and can further implement higher-precision positioning.
  • the communication method provided in this embodiment of this application further includes the following steps.
  • the first network device or the second network device receives the fourth capability information sent by the terminal device.
  • the fourth capability information may be sent by the terminal device by using RRC signaling.
  • the fourth capability information and the first capability information may be sent in a same piece of signaling, or the fourth capability information and the first capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • the fourth capability information and the second capability information may be sent in a same piece of signaling, or the fourth capability information and the second capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • a specific implementation of the fourth capability information depends on an application scenario, and is not limited herein.
  • N is less than M; or N is not greater than M.
  • N M
  • a high-precision positioning requirement of the terminal device for example, RedCap UE
  • N M
  • a high-precision positioning requirement of the terminal device for example, RedCap UE
  • N M
  • a transmission bandwidth capability of a positioning reference signal is equal to a bandwidth capability of data transmission. This simplifies a configuration manner of a transmission bandwidth of the positioning reference signal and a bandwidth of data transmission.
  • the communication method provided in this embodiment of this application further includes the following steps.
  • the terminal device sends fifth capability information to the first network device or the second network device.
  • the first network device or the second network device receives the fifth capability information sent by the terminal device.
  • the fifth capability information indicates:
  • the fifth capability information may be sent by the terminal device by using RRC signaling.
  • the fifth capability information and the first capability information may be sent in a same piece of signaling, or the fifth capability information and the first capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • the fifth capability information and the second capability information may be sent in a same piece of signaling, or the fifth capability information and the second capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • a specific implementation of the fifth capability information depends on an application scenario, and is not limited herein.
  • the algorithm in this embodiment of this application may be a sequence generation method. Content or quantities of sequences generated by different algorithms are not completely the same. For example, a sequence ID used when the first algorithm generates a sequence is in a range of ⁇ 0, ..., 1023 ⁇ . For example, a sequence ID used when the second algorithm generates a sequence is in a range of ⁇ 0, ..., 65535 ⁇ .
  • the communication method provided in this embodiment of this application further includes the following steps.
  • the terminal device sends sixth capability information to the first network device or the second network device.
  • the first network device or the second network device receives the sixth capability information sent by the terminal device.
  • the sixth capability information includes at least one type of the following information: scrambling code information, location information, period information, interval information, frequency hopping information, density information, reserved time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the sixth capability information may be sent by the terminal device by using RRC signaling.
  • the sixth capability information and the first capability information may be sent in a same piece of signaling, or the sixth capability information and the first capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • the sixth capability information and the second capability information may be sent in a same piece of signaling, or the sixth capability information and the second capability information may be separately sent by using different pieces of signaling. This is not limited herein.
  • a specific implementation of the sixth capability information depends on an application scenario, and is not limited herein.
  • the first configuration information includes a configuration of a manner of sending and/or receiving the first information.
  • the manner of sending and/or receiving the first information includes: The terminal device sends and/or receives the first information based on the first capability information, or the terminal device sends and/or receives the first information based on the second capability information; or the manner of sending and/or receiving the first information includes: The terminal device generates the first information according to the first algorithm, or generates the first information according to the second algorithm, where the first algorithm and the second algorithm are different algorithms.
  • the terminal device obtains the first configuration information.
  • the first configuration information has a plurality of implementations, for example, a configuration of a manner of sending and/or receiving the first information, for example, a configuration of a manner of sending the first information, or a configuration of a manner of receiving the first information.
  • the manner of sending and/or receiving the first information includes: The terminal device sends and/or receives the first information based on the first capability information, or the terminal device sends and/or receives the first information based on the second capability information. In other words, the manner of sending and/or receiving the first information indicates to send and/or receive the first information based on the first capability information or the second capability information.
  • the terminal device may obtain, by using the first configuration information, the configuration of the manner of sending and/or receiving the first information, so that the terminal device sends and/or receives the first information.
  • the manner of sending and/or receiving the first information includes: The terminal device generates the first information according to the first algorithm, or generates the first information according to the second algorithm. In other words, the manner of sending and/or receiving the first information indicates generation according to the first algorithm or the second algorithm. In this embodiment of this application, a specific algorithm used to generate the first information is not limited.
  • the terminal device may obtain, by using the first configuration information, the configuration of the manner of sending and/or receiving the first information, so that the terminal device sends and/or receives the first information.
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the interval information is an interval that is between two consecutive times of sending and/or receiving the first information and that can be supported by the terminal device.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the reserved time information is a time length that needs to be reserved before the terminal device sends and/or receives the first information, a time length that needs to be reserved after the terminal device sends and/or receives the first information, a time length that needs to be reserved between two times of sending the first information by the terminal device, or a time length that needs to be reserved between two times of receiving the first information by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the nonsimultaneous transmit information indicates that when sending the first information, the terminal device does not support sending information other than the first information.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the frequency hopping time domain configuration includes at least one of the following: a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame or slot configuration.
  • the frequency hopping frequency domain configuration includes at least one of the following: a start RB location, a quantity of RBs occupied by each hop, a resource width corresponding to each hop, a quantity of hops on a frequency corresponding to specific time, a frequency resource range of frequency hopping, subcarrier spacing information, and a frequency hopping offset.
  • Whether frequency hopping is enabled may be that frequency hopping is enabled or frequency hopping is not enabled.
  • the first configuration information may further include the frequency hopping time domain configuration and the frequency hopping frequency domain configuration. Therefore, the terminal device can obtain, by using the first configuration information, frequency hopping information for sending and/or receiving the first information, so that the terminal device sends and/or receives the first information.
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • a default configuration manner may be further predefined as ⁇ first mode, frequency hopping ⁇ .
  • the terminal device may send and/or receive the first information in the default configuration manner ⁇ first mode, frequency hopping ⁇ .
  • the first configuration information indicates that a manner of sending and/or receiving the first information is one of the following: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , ⁇ second mode, no frequency hopping ⁇ , or ⁇ first mode, frequency hopping ⁇ .
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the terminal device sends and/or receives the first information in a predefined sending and/or receiving manner.
  • the predefined sending and/or receiving manner includes at least one of the following:
  • a plurality of sending and/or receiving manners may be predefined, and a trigger condition may be set in each manner.
  • the trigger condition may be a condition that is set based on the quantity of resources occupied by the first information, the first quantity, and the second quantity.
  • the terminal device sends and/or receives the first information in a predefined manner. Therefore, the terminal device may obtain, in the predefined manner, frequency hopping information and carrier aggregation information that are used to send and/or receive the first information, so that the terminal device sends and/or receives the first information.
  • the first capability information includes at least one of the following: a maximum bandwidth that can be occupied when the terminal device transmits the first information on a single carrier, a maximum bandwidth obtained after the terminal device supports carrier aggregation of the first information, and tuning time of the terminal device.
  • the second capability information includes at least one of the following: a maximum bandwidth used by the terminal device to transmit the second information, a maximum baseband bandwidth used by the terminal device to transmit the second information, a maximum radio frequency bandwidth used by the terminal device to transmit the second information, a maximum bandwidth obtained after transmission of the second information by the terminal device supports carrier aggregation, and tuning time used by the terminal device to perform carrier aggregation transmission.
  • the first configuration information includes a resource configuration occupied for sending and/or receiving the first information.
  • the resource configuration includes at least one of the following: a bandwidth configuration, a bandwidth part BWP configuration, a resource block RB configuration, and a subcarrier configuration.
  • the bandwidth configuration includes at least one of the following: a bandwidth size, a bandwidth location, a center frequency indication, a grid size, and an absolute frequency channel number.
  • the RB configuration includes at least one of the following: a quantity of RBs occupied by the first information, an RB location occupied by the first information, and a start RB location occupied by the first information.
  • the terminal device obtains the first configuration information.
  • the first configuration information has a plurality of implementations, for example, a resource configuration occupied for sending and/or receiving the first information.
  • the resource configuration includes at least one of the following: a bandwidth configuration, a bandwidth part BWP configuration, a resource block RB configuration, and a subcarrier configuration.
  • the terminal device may obtain, by using the first configuration information, the resource configuration for sending and/or receiving the first information, so that the terminal device sends and/or receives the first information.
  • This embodiment of this application may be applied to implement a high-precision positioning requirement of the terminal device (for example, RedCap UE) without greatly increasing complexity/costs/power consumption of the UE.
  • the terminal device for example, RedCap UE
  • the UE determines a maximum resource (referred to as the "first resource”) that can be used by the UE to send a positioning reference signal, and the UE determines a maximum resource (referred to as the "second resource") for data transmission (hereinafter briefly referred to as data transmission).
  • the UE is new-form UE different from normal UE.
  • the first resource may be greater than the second resource to implement high-precision positioning and low complexity.
  • the "transmission bandwidth capability of the positioning reference signal” is not limited to the "bandwidth capability of data transmission”, and a carrier aggregation (carrier aggregation, CA) capability of the positioning reference signal and a CA capability of data transmission are configured differently. Details are provided below.
  • This embodiment of this application is applied to a 5G positioning scenario, and related network elements include an LMF, a base station (such as a gNB/ng-eNB), and UE.
  • LMF an LMF
  • a base station such as a gNB/ng-eNB
  • UE User Equipment
  • This embodiment of this application is applied to a 5G positioning scenario, and functions of a network element include:
  • the (maximum) resource capability of the uplink positioning reference signal reported by the UE may be greater than (or higher than) a (maximum) resource capability of data transmission.
  • the (maximum) resource capability of the uplink positioning reference signal reported by the UE may alternatively be not greater than (or not higher than) the (maximum) resource capability of data transmission.
  • the network unit may obtain the (maximum) resource capability information of the uplink positioning reference signal of the UE from the UE.
  • the network unit may obtain the configuration information of the uplink positioning reference signal of the UE from the UE.
  • the network unit may receive, based on reference signal configuration information, a sounding reference signal SRS transmitted by the UE.
  • the LMF is responsible for supporting different types of location services related to the target UE, including positioning the UE and transferring assistance data to the UE.
  • a control plane and a user plane of the LMF are an enhanced serving mobile location center (Enhanced Serving Mobile Location Centre, E-SMLC) and a secure user plane location platform (Secure User Plane Location, SLP), respectively.
  • E-SMLC Enhanced Serving Mobile Location Centre
  • SLP Secure User Plane Location
  • the LMF may exchange information with the ng-eNB/gNB and the UE.
  • the information exchange may be UE capability information transfer, auxiliary information transfer, measurement information transfer, and the like performed with the UE by using an LTE positioning protocol (LTE Positioning Protocol, LPP) message, and may be information used to assist users in measurement or location calculation.
  • LTE positioning protocol LTE Positioning Protocol, LPP
  • an access and mobility management function may receive a location service request related to target UE from a location service (LoCation Services, LCS) entity, or the AMF may start some location services on behalf of specific target UE, and forward the location service request to the LMF. After receiving location information returned by the UE, the AMF returns related location information to the LCS entity.
  • LCS is a management module for interacting location traffic between the core network and the outside of the core network.
  • the gNB/ng-eNB may provide measurement information for the target UE, and transfer the information to the LMF.
  • Embodiment 1 is described from a UE side
  • Embodiment 2 is described from a network device side.
  • steps S01 and S02 are performed by UE
  • steps S03 and S04 are performed by a network device.
  • the UE may send a positioning reference signal on more (or larger) resources.
  • the UE can communicate with a peer device or perform data transmission only on less (or smaller) resources.
  • a resource that can be used by the UE to send the positioning reference signal may be greater than a maximum resource that can be used when the UE communicates with the peer device or performs data transmission.
  • the UE may send the positioning reference signal on more (or larger) resources
  • a maximum baseband processing capability of the UE does not match (for example, is the same as or equivalent to) a maximum resource supported by an uplink positioning reference signal of the UE, so that the UE can implement low complexity or low costs.
  • the UE can communicate with the peer device or perform data transmission only on less (or smaller) resources, and power consumption overheads of the UE are reduced. This implements low power consumption.
  • the resource may be one or more of a bandwidth, a subband, a resource including one or more resource blocks, one or more carrier resources, a frequency range, a frequency segment, a frequency band, one or more subcarrier spacings, a quantity of subcarrier spacings, a bandwidth part BWP, a frequency hopping interval, and a quantity of frequency hops.
  • the UE determines a maximum resource (referred to as the "first resource”) that can be used by the UE to send the positioning reference signal, and the UE determines a maximum resource (referred to as the "second resource") of data transmission.
  • the UE is new-form UE different from normal UE.
  • the first resource may be greater than the second resource, to implement high-precision positioning and low complexity.
  • FIG. 3b is a schematic diagram in which a first resource of UE is 100 MHz and a second resource of UE is 20 MHz.
  • the UE may report (maximum) resource capability information of an uplink positioning reference signal of the UE to the LMF or the base station (or another communication entity).
  • the UE may report (maximum) resource capability information of an uplink positioning reference signal of the UE to the LMF or the base station (or another communication entity).
  • the resource capability information of the uplink positioning reference signal includes one or more of a maximum bandwidth that can be occupied when the UE sends the positioning reference signal on a single carrier, whether the UE supports carrier aggregation CA of the uplink positioning reference signal, a quantity of carriers whose CA can be supported by the UE, a maximum bandwidth after the UE supports positioning reference signal CA, tuning time of the UE, and the like.
  • the frequency hopping location scenario is mainly considered. During a next frequency hop, a central frequency of a carrier needs to be adjusted. Therefore, specific hardware adjustment time that is referred to as "tuning time" is required.
  • the resource capability information of the uplink positioning reference signal may include one or more of location information, period information, interval information, frequency hopping information, density information, reserved time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information that are used by the UE to generate the uplink positioning reference signal.
  • the period information may be a period that is of sending the uplink positioning reference signal and that can be supported by the UE.
  • the interval information may be a (minimum) interval that is between two consecutive times of sending the uplink positioning reference signal and that can be supported by the UE.
  • the frequency hopping information may be one or more of whether the uplink positioning reference signal of the UE supports frequency hopping, a quantity of hops in specific time, a quantity of resource blocks RBs occupied by each hop (or a frequency width occupied by a signal at each hop), a second resource width at each hop, a frequency hopping offset, a frequency resource range of frequency hopping, and subcarrier spacing information. At least one of values of the frequency hopping offset can enable frequency resources of two adjacent uplink positioning reference signals to overlap.
  • the first resource bandwidth is a bandwidth corresponding to a maximum resource that can be used by the UE to send the positioning reference signal.
  • the second resource bandwidth is a bandwidth corresponding to a maximum resource for data transmission.
  • the density information may be a quantity of times that the UE sends the uplink positioning reference signal within a specific time range.
  • the reserved time information may be a time length that needs to be reserved before the UE sends the uplink positioning reference signal, or a time length that needs to be reserved after the UE sends the uplink positioning reference signal, or a time length that needs to be reserved between two times of sending the uplink positioning reference signal by the UE.
  • the tuning time information may be switching time from sending the uplink positioning reference signal by the UE to sending the uplink positioning reference signal next time.
  • the nonsimultaneous transmit information may indicate that when sending the uplink positioning reference signal, the UE does not support sending another (one or more types of) uplink signal.
  • some resource capability information of the uplink positioning reference signal of the UE may alternatively be pre-specified. In this way, the UE does not need to report the pre-specified resource capability information.
  • the reserved time information is pre-specified, or the nonsimultaneous transmit information is pre-specified, or the nonsimultaneous receive information is pre-specified.
  • time that the UE needs to reserve before or after sending the uplink positioning reference signal is pre-specified. For example, it is pre-specified that when sending the uplink positioning reference signal, the UE cannot send a physical uplink shared channel PUSCH and/or a physical uplink control channel PUCCH.
  • the resource capability of the UE is pre-specified, or the UE may further report resource capability information of the UE to the LMF or the base station (or another communication entity).
  • the resource capability information of the UE is a (maximum) resource capability of data transmission.
  • a maximum bandwidth for data transmission of the UE is pre-specified, or it is pre-specified that data transmission of the UE does not support CA.
  • Step S02 The UE reports (maximum) resource capability information of data transmission of the UE to the LMF or the base station (or another communication entity).
  • the maximum bandwidth is a maximum bandwidth for data transmission of the UE.
  • maximum data transmission bandwidth maximum baseband bandwidth ⁇ maximum radio frequency bandwidth.
  • the resource capability information of the uplink positioning reference signal reported by the UE is as follows:
  • the resource capability information of the uplink positioning reference signal reported by the UE is as follows:
  • the transmission information of the uplink positioning reference signal includes a configuration of a resource occupied for transmitting the uplink positioning reference signal and/or a configuration of a transmission manner.
  • the resource may be one or more of a bandwidth, a BWP, an RB, and a subcarrier.
  • a bandwidth configuration may include one or more of a bandwidth size, a bandwidth location, a center frequency indication, a grid (raster) size, an absolute frequency channel number, and the like.
  • a BWP configuration may include one or more of a BWP size and a BWP location.
  • An RB configuration may include one or more of a quantity of occupied RBs, an occupied RB location, and a start RB location.
  • a subcarrier configuration may include a supported subcarrier spacing.
  • Grid is a type of bandwidth configuration parameters. Grid data is used to divide space into regular grids. Each grid is referred to as a unit. During bandwidth configuration, the "grid size" refers to a granularity of dividing an entire frequency band.
  • the transmission manner includes: whether the uplink positioning reference signal is transmitted based on a resource capability of the uplink positioning reference signal of the UE, or the uplink positioning reference signal is transmitted based on a resource capability of data transmission of the UE.
  • the transmission manner includes: whether a sequence of the uplink positioning reference signal is generated based on a type 1 or a sequence of the uplink positioning reference signal is generated based on a type 2.
  • the transmission information of the uplink positioning reference signal may include scrambling code information used by the UE to generate the uplink positioning reference signal.
  • the scrambling code information may be one or more of a scrambling code range and a scrambling code value set.
  • the transmission information of the uplink positioning reference signal may include one or more of the following: location information, period information, interval information, frequency hopping information, density information, guard time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information of the uplink positioning reference signal.
  • the location information may be a location at which the uplink positioning reference signal is sent.
  • the location at which the uplink positioning reference signal is sent is in specific time of an SSB. Because it is specified that the location at which the UE sends the uplink positioning reference signal is within the specific time of the SSB, the UE can quickly implement synchronization tracking. This reduces power consumption.
  • the period information may be a period of sending the uplink positioning reference signal.
  • the interval information may be a (minimum) interval between two consecutive times of sending the uplink positioning reference signal.
  • the density information may be a quantity of times of sending the uplink positioning reference signal within a specific time range.
  • the configuration information related to frequency hopping includes one or more of the following:
  • Frequency hopping time domain configuration (one or more of a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame/slot (slot) configuration).
  • the UE may obtain indication information of a transmission manner of the uplink positioning reference signal from the LMF or the base station (or another communication entity).
  • the LMF or the base station indicates a transmission manner for the UE in the following sets: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , and ⁇ second mode, no frequency hopping ⁇ .
  • the LMF or the base station indicates a transmission manner for the UE in the following sets: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , ⁇ second mode, no frequency hopping ⁇ , and ⁇ first mode, frequency hopping ⁇ .
  • the uplink positioning reference signal is transmitted through frequency hopping (or transmitted based on a frequency hopping indication).
  • the resource occupied by transmission of the uplink positioning reference signal may be greater than the resource capability of the UE.
  • the resource occupied by transmission of the uplink positioning reference signal may alternatively be not greater than the resource capability of the UE.
  • a network may further configure the UE to send the uplink positioning reference signal in a frequency hopping manner, to implement better positioning performance.
  • the UE may further send the uplink positioning reference signal in a frequency hopping manner, to implement better positioning performance.
  • the UE sends an SRS based on the configuration information that is of the positioning reference signal and that is received from the LMF or the base station.
  • the uplink positioning reference signal is used as an example to describe implementation of this embodiment of this application.
  • the uplink positioning reference signal in this embodiment of this application may be replaced with another specific signal or channel (for example, another uplink signal or channel, or another downlink signal or channel). This also belongs to the protection content of this embodiment of this application.
  • PRS positioning downlink.
  • transmission may be sending and/or receiving.
  • transmission on one side of communication is sending
  • transmission on a peer device of communication is receiving.
  • the UE determines the maximum bandwidth for sending the positioning reference signal by the UE, and the UE determines the maximum bandwidth of data transmission. This can effectively avoid greatly increasing complexity/costs of the UE while ensuring high-precision positioning, and help reduce power consumption of the UE.
  • the maximum bandwidth of the positioning signal is tightly coupled to the data transmission bandwidth of the UE.
  • the UE determines the maximum bandwidth of the positioning signal, and the UE determines the data transmission bandwidth of the UE.
  • the maximum bandwidth for sending the positioning reference signal by the UE is no longer limited to the data transmission bandwidth of the UE.
  • Step S03 The network unit may obtain the (maximum) resource capability information of the uplink positioning reference signal of the UE from the UE.
  • the resource capability information of the uplink positioning reference signal may indicate that the UE supports generating a sequence based on a type 1, or the UE supports generating a sequence based on a type 2.
  • the resource capability information of the uplink positioning reference signal may further indicate that the UE supports generating a sequence based on a type 1, or the UE supports generating a sequence based on a type 2, or the UE supports generating a sequence based on a type 1 and a type 2.
  • the resource capability information of the uplink positioning reference signal may include scrambling code information used by the UE to generate the uplink positioning reference signal.
  • the scrambling code information may be one or more of a scrambling code range and a scrambling code value set.
  • the resource capability information of the uplink positioning reference signal may include one or more of location information, period information, interval information, frequency hopping information, density information, reserved time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information of the uplink positioning reference signal of the UE.
  • the location information may be a location that is for sending the uplink positioning reference signal and that can be supported by the UE, for example, a fixed location or a flexible location.
  • a location at which the UE sends the uplink positioning reference signal is in specific time of an SSB. Because a location at which the UE sends the uplink positioning reference signal is in specific time of the SSB, the UE can quickly implement synchronization tracking. This reduces power consumption.
  • the location information obtained from the UE may be an expected specific time value or range.
  • the period information may be a period that is of sending the uplink positioning reference signal and that can be supported by the UE.
  • the interval information may be a (minimum) interval that is between two consecutive times of sending the uplink positioning reference signal and that can be supported by the UE.
  • the frequency hopping information may be one or more of whether the uplink positioning reference signal of the UE supports frequency hopping, a quantity of hops in specific time, a quantity of RBs occupied by each hop (or a frequency width occupied by a signal at each hop), a second resource width at each hop, a frequency hopping offset, a frequency resource range of frequency hopping, and subcarrier spacing information. At least one of values of the frequency hopping offset can enable frequency resources of two adjacent uplink positioning reference signals to overlap.
  • the density information may be a quantity of times that the UE sends the uplink positioning reference signal within a specific time range.
  • the reserved time information may be a time length that needs to be reserved before the UE sends the uplink positioning reference signal, or a time length that needs to be reserved after the UE sends the uplink positioning reference signal, or a time length that needs to be reserved between two times of sending the uplink positioning reference signal by the UE.
  • the nonsimultaneous transmit information may indicate that when sending the uplink positioning reference signal, the UE does not support sending another (one or more types of) uplink signal.
  • the nonsimultaneous receive information may indicate that when sending the uplink positioning reference signal, the UE does not support receiving another (one or more types of) downlink signal.
  • the network unit may pre-specify some resource capability information of the uplink positioning reference signal of the UE.
  • the reserved time information is pre-specified, or the nonsimultaneous transmit information is pre-specified, or the nonsimultaneous receive information is pre-specified.
  • time that the UE needs to reserve before or after sending the uplink positioning reference signal is pre-specified.
  • a resource capability of the UE is pre-specified, or the network unit may further obtain resource capability information of the UE from the UE.
  • the resource capability information of the UE is a (maximum) resource capability of data transmission.
  • a maximum bandwidth for data transmission of the UE is pre-specified, or it is pre-specified that data transmission of the UE does not support CA.
  • Step S04 The network unit may obtain the (maximum) resource capability information of data transmission of the UE from the UE.
  • the resource capability information of data transmission includes one or more of a maximum bandwidth for data transmission of the UE, a maximum baseband bandwidth for data transmission of the UE, a maximum radio frequency bandwidth for data transmission of the UE, carrier aggregation CA that the UE does not support for data transmission, a quantity of carriers whose CA can be supported by the UE data transmission, a maximum bandwidth after data transmission of the UE supports CA of the positioning reference signal, tuning time for data transmission of the UE, and the like.
  • (maximum) resource capability of the uplink positioning reference signal of the UE may alternatively be not greater than (or not higher than) the (maximum) resource capability of data transmission.
  • the resource capability information of the uplink positioning reference signal obtained from the UE is as follows:
  • the resource capability information of the uplink positioning reference signal obtained from the UE is as follows:
  • a bandwidth of the uplink positioning reference signal obtained from the UE is 100 MHz, and a bandwidth of the UE is 20 MHz.
  • a bandwidth of the uplink positioning reference signal obtained from the UE is N RBs, and a bandwidth of the UE is M RBs, where N > M.
  • the uplink positioning reference signal obtained from the UE supports carrier aggregation, but data transmission of the UE does not support carrier aggregation.
  • the network unit may send the configuration information of the uplink positioning reference signal of the UE to the UE.
  • the configuration information of the uplink positioning reference signal includes one or more of the following: a. transmission information of the uplink positioning reference signal; and b. configuration information related to frequency hopping.
  • the resource may be one or more of a bandwidth, a BWP, an RB, and a subcarrier.
  • a bandwidth configuration may include one or more of a bandwidth size, a bandwidth location, a center frequency indication, a grid (raster) size, an absolute frequency channel number, and the like.
  • a BWP configuration may include one or more of a BWP size and a BWP location.
  • An RB configuration may include one or more of a quantity of occupied RBs, an occupied RB location, and a start RB location.
  • a subcarrier configuration may include a supported subcarrier spacing.
  • the transmission manner includes: whether the uplink positioning reference signal is transmitted based on a resource capability of the uplink positioning reference signal of the UE, or the uplink positioning reference signal is transmitted based on a resource capability of data transmission of the UE.
  • the transmission manner includes: whether a sequence of the uplink positioning reference signal is generated based on a type 1 or a sequence of the uplink positioning reference signal is generated based on a type 2.
  • the transmission information of the uplink positioning reference signal may include scrambling code information used by the UE to generate the uplink positioning reference signal.
  • the scrambling code information may be one or more of a scrambling code range and a scrambling code value set.
  • the period information may be a period of sending the uplink positioning reference signal.
  • the reserved guard time information may be a time length that needs to be reserved before the uplink positioning reference signal is sent, or a time length that needs to be reserved after the uplink positioning reference signal is sent, or a time length that needs to be reserved between two times of sending the uplink positioning reference signal.
  • the tuning time information may be switching time from sending the uplink positioning reference signal to sending the uplink positioning reference signal next time.
  • the nonsimultaneous transmit information may indicate that when sending the uplink positioning reference signal, the UE does not send another (one or more types of) uplink signal information.
  • the nonsimultaneous receive information may indicate that when sending the uplink positioning reference signal, the UE does not receive another (one or more types of) downlink signal information.
  • the configuration information related to frequency hopping includes one or more of the following: enabling/disabling frequency hopping.
  • Frequency hopping time domain configuration (one or more of a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame/slot configuration).
  • Frequency hopping frequency domain configuration (one or more of a start RB location, a quantity of RBs occupied by each hop (or one or more of a frequency width occupied by a signal at each hop), a second resource width (for example, used for phase estimation) of each hop, a quantity of hops on a frequency in specific time, a frequency resource range of frequency hopping, subcarrier spacing information, and a frequency hopping offset).
  • At least one of values of the frequency hopping offset can enable frequency resources of two adjacent uplink positioning reference signals to overlap.
  • a maximum quantity of RBs included in each hop is an integer multiple, or 1/2 or 1/4 times of 100 (or 50, or 106).
  • a value of a start RB of a first hop is ⁇ 0, ..., X-1 ⁇ , where X is determined based on one or more of a quantity of hops on a frequency, a remainder RB, a carrier bandwidth, a BWP size, and an SCS.
  • the network unit may send indication information of a transmission manner of the uplink positioning reference signal of the UE to the UE.
  • the following defines a first mode and a second mode.
  • the uplink positioning reference signal is transmitted based on a resource capability of data transmission of the UE.
  • the network unit indicates the transmission manner for the UE in the following sets: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , and ⁇ second mode, no frequency hopping ⁇ .
  • the transmission manner is predefined.
  • the uplink positioning reference signal is transmitted through frequency hopping (or transmitted based on a frequency hopping indication).
  • the uplink positioning reference signal is transmitted based on carrier aggregation.
  • a resource capability of the uplink positioning reference signal of the UE is 100 MHz
  • the UE may transmit the uplink positioning reference signal in a carrier aggregation manner, and an occupied spectrum resource may be 100 MHz, 200 MHz, 300 MHz, or the like.
  • the uplink positioning reference signal is transmitted based on a single carrier.
  • the resource occupied by transmission of the uplink positioning reference signal may be greater than the resource capability of the UE.
  • the resource occupied by transmission of the uplink positioning reference signal may alternatively be not greater than the resource capability of the UE.
  • a network may further configure the UE to send the uplink positioning reference signal in a frequency hopping manner, to implement better positioning performance.
  • the UE may further send the uplink positioning reference signal in a frequency hopping manner, to implement better positioning performance.
  • the network unit may receive, based on reference signal configuration information, an SRS transmitted by the UE.
  • a network unit for example, an LMF/a base station/another communication entity
  • the communication apparatus may be a terminal device, an apparatus in the terminal device, or an apparatus that can be collaboratively used with the terminal device.
  • FIG. 4 is shown by using an example in which the communication apparatus is a terminal device 400.
  • the terminal device 400 may include a transceiver module 401 and a processing module 402.
  • the transceiver module is configured to transmit second capability information to a second network device, where the second capability information indicates that the terminal device supports sending and/or receiving second information by using a maximum of a second quantity of resources, and the second information includes at least one of the following: data or control information.
  • the processing module is configured to obtain second configuration information, where the second configuration information indicates that a quantity of resources configured for the second information is not greater than the second quantity.
  • the first quantity is greater than the second quantity.
  • the first quantity belongs to a first quantity set, and at least one quantity in the first quantity set is greater than the second quantity;
  • the resource is one or more of a bandwidth, a resource block, a carrier, a subband, a frequency range, a frequency segment, a frequency band, a subcarrier spacing, a bandwidth part BWP, a frequency hopping interval, and a quantity of frequency hops within a specific time range.
  • the transceiver module is configured to send third capability information to the first network device or the second network device.
  • the third capability information indicates:
  • the transceiver module is configured to send fourth capability information to the first network device or the second network device.
  • N is less than M; or N is not greater than M.
  • the fifth capability information indicates:
  • the first algorithm and the second algorithm are different algorithms.
  • the transceiver module is configured to send sixth capability information to the first network device or the second network device.
  • the sixth capability information includes at least one type of the following information: scrambling code information, location information, period information, interval information, frequency hopping information, density information, reserved time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the interval information is an interval that is between two consecutive times of sending and/or receiving the first information and that can be supported by the terminal device.
  • the frequency hopping information is one or more of whether the terminal device supports sending and/or receiving the first information in a frequency hopping manner, a quantity of hops for sending and/or receiving the first information in specific time, a quantity of resource blocks RBs occupied for sending and/or receiving the first information at each hop, a resource width for sending and/or receiving the first information corresponding to each hop, a frequency hopping offset for sending and/or receiving the first information, a frequency resource range for sending and/or receiving the first information in a frequency hopping manner, and subcarrier spacing information for sending and/or receiving the first information.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the reserved time information is a time length that needs to be reserved before the terminal device sends and/or receives the first information, a time length that needs to be reserved after the terminal device sends and/or receives the first information, a time length that needs to be reserved between two times of sending the first information by the terminal device, or a time length that needs to be reserved between two times of receiving the first information by the terminal device.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the first configuration information includes a configuration of a manner of sending and/or receiving the first information.
  • the manner of sending and/or receiving the first information includes: The terminal device sends and/or receives the first information based on the first capability information, or the terminal device sends and/or receives the first information based on the second capability information; or the manner of sending and/or receiving the first information includes: The terminal device generates the first information according to the first algorithm, or generates the first information according to the second algorithm, where the first algorithm and the second algorithm are different algorithms.
  • the first configuration information includes information about sending and/or receiving the first information.
  • the information about sending and/or receiving the first information includes at least one of the following: scrambling code information, location information, period information, interval information, frequency hopping information, density information, guard time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the frequency hopping information is one or more of whether the terminal device supports sending and/or receiving the first information in a frequency hopping manner, a quantity of hops for sending and/or receiving the first information in specific time, a quantity of resource blocks RBs occupied for sending and/or receiving the first information at each hop, a resource width for sending and/or receiving the first information corresponding to each hop, a frequency hopping offset for sending and/or receiving the first information, a frequency resource range for sending and/or receiving the first information in a frequency hopping manner, and subcarrier spacing information for sending and/or receiving the first information.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the reserved time information is a time length that needs to be reserved before the terminal device sends and/or receives the first information, a time length that needs to be reserved after the terminal device sends and/or receives the first information, a time length that needs to be reserved between two times of sending the first information by the terminal device, or a time length that needs to be reserved between two times of receiving the first information by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the nonsimultaneous transmit information indicates that when sending the first information, the terminal device does not support sending information other than the first information.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the frequency hopping time domain configuration includes at least one of the following: a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame or slot configuration.
  • the frequency hopping frequency domain configuration includes at least one of the following: a start RB location, a quantity of RBs occupied by each hop, a resource width corresponding to each hop, a quantity of hops on a frequency corresponding to specific time, a frequency resource range of frequency hopping, subcarrier spacing information, and a frequency hopping offset.
  • the first configuration information indicates one of the following manners of sending and/or receiving the first information: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , and ⁇ second mode, no frequency hopping ⁇ .
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the first configuration information indicates that a manner of sending and/or receiving the first information is one of the following: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , ⁇ second mode, no frequency hopping ⁇ , or ⁇ first mode, frequency hopping ⁇ .
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the terminal device sends and/or receives the first information in a predefined sending and/or receiving manner.
  • the predefined sending and/or receiving manner includes at least one of the following:
  • the communication apparatus may be a network device, an apparatus in the network device, or an apparatus that can be collaboratively used with the network device.
  • FIG. 5 is shown by using an example in which the communication apparatus is a network device 500.
  • the network device 500 may include a transceiver module 501 and a processing module 502.
  • the processing module is configured to receive, by using the transceiver module, first capability information transmitted by a terminal device, where the first capability information indicates that the terminal device supports sending and/or receiving first information by using a maximum of a first quantity of resources, and the first information includes a reference signal.
  • the processing module is configured to send first configuration information to the terminal device by using the transceiver module, where the first configuration information indicates that a quantity of resources configured for the first information is not greater than the first quantity.
  • the processing module is configured to send second configuration information to the terminal device by using the transceiver module, where the second configuration information indicates that a quantity of resources configured for the second information is not greater than the second quantity.
  • the first quantity is greater than the second quantity.
  • the third capability information indicates:
  • the fourth capability information indicates:
  • the fifth capability information indicates:
  • the first algorithm and the second algorithm are different algorithms.
  • the processing module is configured to receive, by using the transceiver module, sixth capability information sent by the terminal device.
  • the sixth capability information includes at least one type of the following information: scrambling code information, location information, period information, interval information, frequency hopping information, density information, reserved time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the interval information is an interval that is between two consecutive times of sending and/or receiving the first information and that can be supported by the terminal device.
  • the frequency hopping information is one or more of whether the terminal device supports sending and/or receiving the first information in a frequency hopping manner, a quantity of hops for sending and/or receiving the first information in specific time, a quantity of resource blocks RBs occupied for sending and/or receiving the first information at each hop, a resource width for sending and/or receiving the first information corresponding to each hop, a frequency hopping offset for sending and/or receiving the first information, a frequency resource range for sending and/or receiving the first information in a frequency hopping manner, and subcarrier spacing information for sending and/or receiving the first information.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the reserved time information is a time length that needs to be reserved before the terminal device sends and/or receives the first information, a time length that needs to be reserved after the terminal device sends and/or receives the first information, a time length that needs to be reserved between two times of sending the first information by the terminal device, or a time length that needs to be reserved between two times of receiving the first information by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the first configuration information includes: a configuration of a manner of sending and/or receiving the first information.
  • the manner of sending and/or receiving the first information includes: The terminal device sends and/or receives the first information based on the first capability information, or the terminal device sends and/or receives the first information based on the second capability information; or the manner of sending and/or receiving the first information includes: The terminal device generates the first information according to the first algorithm, or generates the first information according to the second algorithm, where the first algorithm and the second algorithm are different algorithms.
  • the first configuration information includes information about sending and/or receiving the first information.
  • the information about sending and/or receiving the first information includes at least one of the following: scrambling code information, location information, period information, interval information, frequency hopping information, density information, guard time information, tuning time information, nonsimultaneous transmit information, and nonsimultaneous receive information.
  • the scrambling code information includes at least one of the following: a scrambling code range and a scrambling code value set.
  • the location information is a location at which the first information is sent and/or received and that can be supported by the terminal device.
  • the period information is a period in which the first information is sent and/or received and that can be supported by the terminal device.
  • the interval information is an interval that is between two consecutive times of sending and/or receiving the first information and that can be supported by the terminal device.
  • the frequency hopping information is one or more of whether the terminal device supports sending and/or receiving the first information in a frequency hopping manner, a quantity of hops for sending and/or receiving the first information in specific time, a quantity of resource blocks RBs occupied for sending and/or receiving the first information at each hop, a resource width for sending and/or receiving the first information corresponding to each hop, a frequency hopping offset for sending and/or receiving the first information, a frequency resource range for sending and/or receiving the first information in a frequency hopping manner, and subcarrier spacing information for sending and/or receiving the first information.
  • the density information is a quantity of times that the terminal device sends and/or receives the first information within a specific time range.
  • the reserved time information is a time length that needs to be reserved before the terminal device sends and/or receives the first information, a time length that needs to be reserved after the terminal device sends and/or receives the first information, a time length that needs to be reserved between two times of sending the first information by the terminal device, or a time length that needs to be reserved between two times of receiving the first information by the terminal device.
  • the tuning time information is switching time between one time of sending first information by the terminal device and next time of sending first information, or switching time between one time of receiving first information by the terminal device and next time of receiving first information.
  • the nonsimultaneous transmit information indicates that when sending the first information, the terminal device does not support sending information other than the first information.
  • the nonsimultaneous receive information indicates that when receiving the first information, the terminal device does not support receiving information other than the first information.
  • the first configuration information includes at least one of the following: whether frequency hopping is enabled, a frequency hopping time domain configuration, and a frequency hopping frequency domain configuration.
  • the frequency hopping time domain configuration includes at least one of the following: a start location, an interval, a period, a quantity of symbols occupied by each hop, and a frame or slot configuration.
  • the frequency hopping frequency domain configuration includes at least one of the following: a start RB location, a quantity of RBs occupied by each hop, a resource width corresponding to each hop, a quantity of hops on a frequency corresponding to specific time, a frequency resource range of frequency hopping, subcarrier spacing information, and a frequency hopping offset.
  • the first configuration information indicates one of the following manners of sending and/or receiving the first information: ⁇ first mode, no frequency hopping ⁇ , ⁇ second mode, frequency hopping ⁇ , and ⁇ second mode, no frequency hopping ⁇ .
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the first mode indicates that the terminal device sends and/or receives the first information based on the first capability information.
  • the second mode indicates that the terminal device sends and/or receives the first information based on the second capability information.
  • the no frequency hopping indicates that the terminal device does not support sending and/or receiving the first information in a frequency hopping manner.
  • the frequency hopping indicates that the terminal device supports sending and/or receiving the first information in a frequency hopping manner.
  • the terminal device sends and/or receives the first information in a predefined sending and/or receiving manner.
  • the predefined sending and/or receiving manner includes at least one of the following:
  • Division into the modules in embodiments of this application is an example, is merely division into logical functions, and may be other division during actual implementation.
  • functional modules in embodiments of this application may be integrated into one processor, or each of the modules may exist alone physically, or two or more modules may be integrated into one module.
  • the integrated module may be implemented in a form of hardware, or may be implemented in a form of a software functional module.
  • FIG. 6 shows an apparatus 600 according to an embodiment of this application.
  • the apparatus 600 is configured to implement functions of the terminal device in the foregoing method.
  • the apparatus may be a terminal device, an apparatus in a terminal device, or an apparatus that can be used together with a terminal device.
  • the apparatus may be a chip system.
  • the chip system may include a chip, or may include a chip and another discrete component.
  • the apparatus 600 includes at least one processor 620, configured to implement the functions of the terminal device in the method provided in embodiments of this application.
  • the processor 620 may receive information such as downlink control information and configuration information of a control resource set, and parse the foregoing information.
  • the processor 620 may receive information such as downlink control information and configuration information of a control resource set, and parse the foregoing information.
  • the apparatus 600 may further include at least one memory 630, configured to store program instructions and/or data.
  • the memory 630 is coupled to the processor 620.
  • the coupling in this embodiment of this application may be an indirect coupling or a communication connection between apparatuses, units, or modules in an electrical form, a mechanical form, or another form, and is used for information exchange between the apparatuses, the units, or the modules.
  • the processor 620 may cooperate with the memory 630.
  • the processor 620 may execute the program instructions stored in the memory 630. At least one of the at least one memory may be included in the processor.
  • the apparatus 700 may further include a communication interface.
  • the communication interface may be a transceiver, an interface, a bus, a circuit, or an apparatus that can implement a receiving and sending function.
  • FIG. 7 shows an example in which the communication interface is a transceiver 710.
  • the transceiver 710 is configured to communicate with another device through a transmission medium, so that the apparatus in the apparatus 700 can communicate with the another device.
  • the another device may be a terminal device.
  • the processor 720 receives or sends data by using the transceiver 710, and is configured to implement the method performed by the network device in the embodiment corresponding to FIG. 1 .
  • a specific connection medium between the transceiver 710, the processor 720, and the memory 730 is not limited in this embodiment of this application.
  • the memory 730, the processor 720, and the transceiver 710 are connected through a bus 740, and the bus is represented by a bold line in FIG. 7 .
  • the bus may be classified into an address bus, a data bus, a control bus, and the like. For ease of indication, the bus is indicated by using only one bold line in FIG. 7 . However, it does not indicate that there is only one bus or only one type of bus.
  • the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logical block diagrams disclosed in embodiments of this application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed with reference to embodiments of this application may be directly performed by a hardware processor, or may be performed by using a combination of hardware in the processor and a software module.
  • the memory may be a non-volatile memory, for example, a hard disk drive (hard disk drive, HDD) or a solid-state drive (solid-state drive, SSD), or may be a volatile memory (volatile memory), for example, a random access memory (random-access memory, RAM).
  • the memory is any other medium that can carry or store expected program code in a structural form of instructions or data and that can be accessed by a computer, but is not limited thereto.
  • the memory in embodiments of this application may alternatively be a circuit or any other apparatus that can implement a storage function, and is configured to store the program instructions and/or the data.
  • All or a part of the technical solutions provided in embodiments of this application may be implemented by using software, hardware, firmware, or any combination thereof.
  • all or a part of embodiments may be implemented in a form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, a network device, a terminal device, or another programmable apparatus.
  • the computer instructions may be stored in a computer-readable storage medium or may be transmitted from a computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center in a wired (for example, a coaxial cable, an optical fiber, or a digital subscriber line (digital subscriber line, DSL)) or wireless (for example, infrared, radio, or microwave) manner.
  • the computer-readable storage medium may be any usable medium accessible by a computer, or a data storage device, such as a server or a data center, integrating one or more usable media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), a semiconductor medium, or the like.
  • embodiments when there is no logical conflict, embodiments may be mutually referenced.
  • methods and/or terms in the method embodiments may be mutually referenced
  • functions and/or terms in the apparatus embodiments may be mutually referenced
  • functions and/or terms between the apparatus embodiments and the method embodiments may be mutually referenced.

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